Molarity Calculator

Molarity Calculator

The METIS Labs molarity calculator is a useful tool which allows you to calculate the:

mass of a compound required to prepare a solution of known volume and concentration.

volume of solution required to dissolve a compound of known mass to a desired concentration.

concentration of a solution resulting from a known mass of compound in a specific volume

Calculate the mass, volume or concentration required for a solution


Mass (g) = Concentration (mol/L) x Volume (L) x Molecular Weight (g/mol)

Molarity Calculator Will be displayed here

An example of a molarity calculator

An example of a molarity calculation using the molarity calculator What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?

1. Enter 326.83 into the Molecular Weight (MW) box

2. Enter 10 into the Concentration box and select the correct unit (millimolar)

3. Enter 10 into the Volume box and select the correct unit (milliliter)

4. Press calculate

5. The answer of 32.683 mg appears in the Mass box

Other Calculator